RunCam 2 has constant blue LED and blinking green light when it is turned on.

The lens module cannot be recognized by the camera. It could be the problem of the lens module. Please remove lens module and clean golden finger and install it back(Please refer to How to replace RunCam 2's lens module?). If the problem persists, please send a video showing problem and a screenshot of your order info to run@runcam.com.